UWB Balanced BPF Using a Low-Cost LCP Bonded Multilayer PCB Technology

Khaled Aliqab, Jiasheng Hong

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)
164 Downloads (Pure)


This paper presents a new miniaturized ultrawideband (UWB) multilayer balanced bandpass filter (BPF) using the liquid-crystal polymer technology. The design is based on the use of two baluns and uses the transversal signal-interference concept for the realization of differential-mode (DM) passband and common-mode (CM) stopband. The broadside coupled stripline structure is adopted in this paper to realize UWB performances and pure TEM mode. The fabricated prototype is self-packaged, light in weight, and cost effective with a small footprint. The demonstrated balanced BPF achieves the excellent DM and CM responses within the entire bandwidth, centered at 6.85 GHz. The simulation and measurement results show good agreement.

Original languageEnglish
Pages (from-to)1023-1029
Number of pages7
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number3
Early online date29 Jan 2019
Publication statusPublished - Mar 2019


  • Balanced filter
  • Broadside coupling
  • Coplanar waveguide (CPW)
  • Liquid-crystal polymer (LCP)
  • Multilayer
  • Ultra-wideband (UWB)

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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